19725291261

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{2689}}^1\times {\mathrm{20899}}^1$

素因数の和:23610

約数の個数: 32

約数和(自身を含む): 31483760000

約数和(自身を除く): 11758468739

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 2689, 8067, 20899, 24201, 34957, 62697, 72603, 104871, 188091, 271687, 314613, 564273, 815061, 943839, 2445183, 7335549, 56197411, 168592233, 505776699, 730566343, 1517330097, 2191699029, 6575097087, 19725291261]

約数ペア:

[(1, 19725291261), (3, 6575097087), (9, 2191699029), (13, 1517330097), (27, 730566343), (39, 505776699), (117, 168592233), (351, 56197411), (2689, 7335549), (8067, 2445183), (20899, 943839), (24201, 815061), (34957, 564273), (62697, 314613), (72603, 271687), (104871, 188091)]